[JSPERFORMANCE]

The 60 has been out for years. Original production dana 60s are found in some of the fastest door cars in the world. I am not sure what proof you want but the strange version of this rear is a beefed up variation on the original unit. The s-60s have been installed in some very fast stock style suspension drag radial cars that dip into the low 7 second zone.. You probably havent read about it because these people are too busy actually racing to go on the internet and post about the rear they have in their car.. Like I said you cant go wrong with either one the 60 is maybe 30 lbs heavier at most than the 12 bolt but it is substantially bigger, you can not use a girdle style cover with the 60, it will hit the panhard bar..